The pulses are mainly green beans, red beans, black beans, mussels, etc., with very high levels of starch, protein, diet fibres and trace elements. Rice and beans are rich in nutrition, but each suffers from a deficiency. For example, less lysine in rice and more beans. In the case of rice, there are more omegosine and less soybeans. None of these proteins can be absorbed, but a combination of them can achieve some complementarity。